diff --git a/gui/shredder/runner.py b/gui/shredder/runner.py
index aeb9f8a5e..e6cfd3c54 100644
--- a/gui/shredder/runner.py
+++ b/gui/shredder/runner.py
@@ -57,8 +57,8 @@ class MatchType(Enum):
     MAPPING = {
         NONE: [],
         BASENAME: ['--match-basename'],
-        EXTENSION: ['--match-with-extension'],
-        WITHOUT_EXTENSION: ['--match-without-extension']
+        EXTENSION: ['--match-extension'],
+        WITHOUT_EXTENSION: ['--no-match-extension']
     }